Ballpoint pen



FIG. 1 is a perspective view of the top, front and right side of a ballpoint pen showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a cross-sectional view thereof at 8—8 in FIG. 2;

FIG. 9 is a cross-sectional view thereof at 9—9 in FIG. 2;

FIG. 10 is a front elevational view thereof, with the ballpoint extended; and,

FIG. 11 is a bottom plan view thereof, with the ballpoint extended.

The broken lines showing of interior features in FIGS. 8 and 9 illustrate environmental matter and form no part of the claimed design. 

The ornamental design for a ballpoint pen, as shown and described. 